CN114250898A - Bidirectional ribbed cavity floor module for steel structure and construction method thereof - Google Patents
Bidirectional ribbed cavity floor module for steel structure and construction method thereof Download PDFInfo
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- CN114250898A CN114250898A CN202111660927.4A CN202111660927A CN114250898A CN 114250898 A CN114250898 A CN 114250898A CN 202111660927 A CN202111660927 A CN 202111660927A CN 114250898 A CN114250898 A CN 114250898A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/063—Re-usable forms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/122—Machines for joining reinforcing bars
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
本发明公开了一种钢结构用双向密肋空腔楼盖模块及其施工方法，涉及装配式建筑技术领域，由至少2根平行的纵向型钢密肋梁、至少2根平行的横向型钢密肋梁、至少1块底板、至少1个空腔构件和至少1个集成管道件预制一体成形的，纵向型钢密肋梁与横向型钢密肋梁交叉设置，底板位于纵向型钢密肋梁与横向型钢密肋梁围合空间的底部，纵向型钢密肋梁中的型钢和横向型钢密肋梁中的型钢分别与底板的钢筋连接，并通过混凝土浇捣成一体，集成管道件固定在底板的上面，空腔构件固定在底板的上面；本发明中的一种钢结构用双向密肋空腔楼盖模块工业化程度高，节省施工时间，减少了支模撑杆的数量，节约工期，可有效降低成本。
The invention discloses a bidirectional rib cavity floor module for a steel structure and a construction method thereof, and relates to the technical field of prefabricated buildings. Beam, at least 1 base plate, at least 1 cavity member and at least 1 integrated piping piece are prefabricated and integrally formed, the longitudinal section steel dense rib beam and the transverse section steel dense rib beam are crossed, and the bottom plate is located between the longitudinal section steel dense rib beam and the transverse section steel dense rib beam. At the bottom of the space enclosed by the rib beam, the section steel in the longitudinal section steel dense rib beam and the section steel in the transverse section steel dense rib beam are respectively connected with the reinforcing bars of the bottom plate, and are integrated by concrete pouring and ramming, and the integrated piping is fixed on the top of the bottom plate. The cavity member is fixed on the top of the bottom plate; the two-way rib cavity floor module for a steel structure in the present invention has a high degree of industrialization, saves construction time, reduces the number of support rods, saves construction period, and can effectively reduce costs.
Description
Technical Field
The invention relates to the technical field of fabricated buildings, in particular to a bidirectional ribbed cavity floor module for a steel structure and a construction method thereof.
Background
At present, steel bar truss floor bearing plates are only used in the application of steel structure floor systems except for cast-in-place concrete floor slabs. Compared with a cast-in-place concrete floor slab, the quantity of the supporting formwork and the cast-in-place concrete of the steel bar truss floor slab is not reduced, and only the quantity of the horizontal formworks is reduced, so that the steel bar truss floor slab is not a true assembly type construction process; neither the construction period nor the workload of manual work, especially wet work, can be reduced, nor the cost can be saved. The composite floor slab with more applications in the reinforced concrete structure at present has smaller suitable span, larger self weight of the floor slab, and the same and smaller wet operation amount of cast-in-place on the composite slab.
Concrete dense-rib cavity floor systems have been widely used in prefabricated concrete structures in recent years, and attempts have been made in steel structure engineering. For example, a utility model patent (patent No. ZL200420103009.7) of a cast-in-place concrete hidden ribbed slab-free hollow floor discloses a technical scheme that a prefabricated cavity member and a cast-in-place concrete section steel ribbed beam are combined to form a concrete dense ribbed cavity floor, but the invention is a cast-in-place section steel ribbed beam and cast-in-place slab mode, and does not belong to an assembly type building; for another example, an invention patent (patent No. ZL201310490037.2) of a bidirectional ribbed cavity floor and a construction method thereof discloses a technical scheme of forming a ribbed cavity floor by combining a section steel ribbed beam and a prefabricated reinforced concrete slab, and although the floor and the process can be listed in an assembly type construction technology, the construction process is complicated, and a prefabricated bottom plate and the section steel beam are not reliably connected.
Aiming at the problems, by combining the characteristics of the structure of the steel structure, a novel assembled multi-ribbed cavity module suitable for the fusion of the steel structure construction process is urgently needed to be developed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a bidirectional multi-ribbed cavity floor module for a steel structure and a construction method thereof.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the utility model provides a two-way close rib cavity superstructure module for steel construction, by the close rib roof beam of 2 parallel vertical shaped steel at least, the close rib roof beam of 2 parallel horizontal shaped steel at least, 1 piece at least bottom plate, at least 1 cavity component and 1 integrated pipeline spare prefabrication integrated into one piece at least, the close rib roof beam of vertical shaped steel and horizontal shaped steel cross arrangement, the bottom plate is located the close bottom in space of the close rib roof beam of vertical shaped steel and the close rib roof beam of horizontal shaped steel, shaped steel in the close rib roof beam of vertical shaped steel and the profile steel in the close rib roof beam of horizontal shaped steel are connected with the reinforcing bar of bottom plate respectively, and smash into an organic whole through concrete, cavity component, integrated pipeline spare all are fixed in on the bottom plate.
On the basis of the technical scheme, holes are reserved on a web plate or a side plate of the section steel in the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam; or a conduit is reserved in the hole; or the concrete within the range of the internal height h of the longitudinal section steel multi-ribbed beam and the transverse section steel multi-ribbed beam is prefabricated and molded together with the concrete of the bottom plate, and the height h of the prefabricated concrete inside the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is less than or equal to the sum of the thickness of the cavity member and the thickness of the bottom plate; or the width b of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is the net distance between two adjacent cavity components; or the width b of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is more than or equal to the width of the section steel upper flange or the section steel of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam.
On the basis of the technical scheme, the center distance between the longitudinal section steel multi-ribbed beams and/or between the transverse section steel multi-ribbed beams is 600-1200 mm; or the height of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is 200-1500 mm; or the width of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is 100-400 mm; or the number of the section steel multi-ribbed beams is 2, 3 or 4.
On the basis of the technical scheme, the side edges of the upper and lower flange plates of the profile steel in the longitudinal profile steel multi-ribbed beam and/or the transverse profile steel multi-ribbed beam are welded with stiffeners, and the stiffeners are one or a combination of steel bars, steel plate strips and steel mesh.
On the basis of the technical scheme, the section steel section in the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is in one of I shape, T shape and L shape or a combination of a plurality of I shapes, T shapes and L shapes; or the section steel in the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam is a light steel composite structure.
On the basis of the technical scheme, the bottom plate is provided with reinforcing steel bars, reinforcing steel bar meshes or prestressed tendons; or when the bottom plate is provided with the steel bars and is vertically connected with the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam, the tail end of each vertical steel bar is provided with the longitudinal steel bars along the direction of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam, and the longitudinal steel bars are welded with the web plate or the lower flange plate of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam; or the steel bars in the bottom plate, which are perpendicular to the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam, penetrate through the web plate or the side plate of the section steel multi-ribbed beam to extend outwards in one direction or two directions, so that the single side or the double sides of the prefabricated bottom plate are picked out towards the outer side of the section steel multi-ribbed beam, and the bottom ribs in the picked bottom plate extend out of the plate edge.
On the basis of the technical scheme, the integrated pipeline piece is provided with 1 or more pipeline ports; or one or a plurality of combinations of a reserved junction box, an electric appliance fixing base, a power socket and a temperature-sensing fire alarm monitoring device are arranged on the upper surface, close to the bottom plate, in the integrated pipeline piece; or the integrated pipeline piece is positioned on the bottom plate inside the cavity component; or the integrated pipeline piece is positioned at the bottom of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam.
On the basis of the technical scheme, the cavity component is a pentahedron structure enclosed by hard materials, the opening of the cavity component faces the bottom plate, and the cavity component is firmly connected with the bottom plate; or the cavity component is a hexahedral structure enclosed by hard materials and is firmly connected with the bottom plate; or the cavity member is a lightweight six-sided solid.
On the basis of the technical scheme, the width of the cavity member is less than or equal to the net distance between the medium-sized steel upper flange plates of the two adjacent longitudinal section steel multi-ribbed beams and/or the two adjacent transverse section steel multi-ribbed beams; the height of the sum of the thicknesses of the cavity member and the bottom plate is less than or equal to the total height of the section steel in the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam.
On the basis of the technical scheme, the two steel structures are spliced by the multi-ribbed cavity floor system module through overlapping of the overhanging steel bars of the bottom plate, a section steel beam is transversely placed, the section steel beam is respectively and rigidly connected with the two transverse section steel multi-ribbed beams, cavity members are arranged in the front and the rear of the section steel beam, and post-cast concrete is cured and formed;
or the splicing of the multi-ribbed cavity floor system modules for the two steel structures is realized by inserting a common longitudinal section steel multi-ribbed beam and/or a transverse section steel multi-ribbed beam through the external extending reinforcing steel bars of the corresponding two bottom plates, rigidly connecting the common longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam with the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam at the joint into a whole, and then pouring and tamping concrete together with the concrete of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam in site for forming;
or the splicing of the dense rib cavity floor system modules for two steel structures is realized by rigidly connecting the longitudinal section steel dense rib beams and/or the transverse section steel dense rib beams at the joints into a whole through the extended steel bars of the bottom plate of one module and the longitudinal section steel dense rib beams and/or the transverse section steel dense rib beams of the other module, and then pouring and tamping concrete together with the concrete of the longitudinal section steel dense rib beams and/or the transverse section steel dense rib beams in situ to form the dense rib cavity floor system modules.
On the basis of the technical scheme, the construction method of the bidirectional ribbed cavity floor module for the steel structure comprises six steps of formwork support, hoisting, module connection, pipeline laying, plate closing and maintenance and form removal:
the step of formwork support is that supporting upright posts are arranged at the splicing positions of every two of the two-way ribbed cavity floor modules for the steel structure; or the top end of the supporting upright rod is provided with a top plate, and the top plate is firmly fixed with the section steel in the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam by adopting a notch, a tongue-and-groove, a stud, a screw or a bolt;
the module connection step is that after two-dimensional multi-ribbed cavity floor modules for a steel structure are spliced in position, reinforcing steel bars in one module base plate are connected with reinforcing steel bars in the other module base plate, a section steel beam is transversely placed and is respectively and rigidly connected with two adjacent transverse section steel multi-ribbed beams into a whole, cavity members are arranged in the front and the rear of the section steel beam, and post-cast concrete is cured and formed; or a public longitudinal section steel multi-ribbed beam and/or a public transverse section steel multi-ribbed beam are inserted through the overhanging reinforcing steel bars of the two corresponding bottom plates, and are rigidly connected with the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam at the joint into a whole, and the concrete is cast and tamped together with the concrete of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam in situ to form the concrete; or after the two-way multi-ribbed cavity floor system modules for the steel structure are spliced in pairs in place, the reinforcing steel bars in the bottom plate of one module are welded with the web plate or the lower flange plate of the longitudinal section steel multi-ribbed beam and/or the transverse section steel multi-ribbed beam of the other module;
the pipeline laying step is that a horizontal pipeline is laid on the bottom plate and reaches a use end interface through the integrated pipeline piece;
the plate closing step is that after the connecting step and the pipeline laying step are completed, reinforcing steel bars of the panels are laid on the upper parts of the longitudinal section steel multi-ribbed beams and/or the transverse section steel multi-ribbed beams and the cavity members, and concrete of the overlapping parts of the longitudinal section steel multi-ribbed beams and/or the transverse section steel multi-ribbed beams and the panels is poured and tamped;
or the plate closing step is that after the module connecting step and the pipeline laying step are completed, prefabricated panels are respectively laid on the upper portions of the longitudinal section steel multi-ribbed beams and/or the transverse section steel multi-ribbed beams and the upper portions of the cavity members, and concrete between the overlapping portions of the longitudinal section steel multi-ribbed beams and/or the transverse section steel multi-ribbed beams and the prefabricated panels is poured and tamped.
Compared with the prior art, the invention has the advantages that:
(1) compared with the prior art, the bidirectional ribbed cavity floor module for the steel structure has the advantages that the prefabrication rate is high, and the industrialization degree is high; the assembled floor system has the advantages of large rigidity, strong bearing capacity, good bidirectional stress performance and strong integrity, can be more suitable for larger structural span, and is suitable for solving the problem of the assembled floor system of a public building with larger span.
(2) The bidirectional multi-ribbed cavity floor module for the steel structure and the construction method thereof completely realize no formwork support, have high prefabrication rate, save construction period and effectively reduce cost, and can quickly finish construction according to a construction scheme.
(3) The bidirectional ribbed cavity floor module for the steel structure is reasonable in layout, the self weight of the floor is reduced, the indoor clear height is increased, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a one-way multi-ribbed cavity floor module for a steel structure according to an embodiment of the present invention;
FIG. 2 is a schematic construction assembly diagram of a steel structure unidirectional multi-ribbed cavity floor module according to an embodiment of the present invention;
FIG. 3 is a schematic construction assembly diagram of a steel structure unidirectional multi-ribbed cavity floor module according to an embodiment of the present invention;
fig. 4 is a schematic construction assembly structure diagram of a unidirectional multi-ribbed cavity floor module for a steel structure in the embodiment of the invention.
In the figure: 1-multi-ribbed beam, 1-1-longitudinal section steel multi-ribbed beam, 1-2-transverse section steel multi-ribbed beam, 2-bottom plate, 3-cavity member, 4-integrated pipeline member, 5-hole, 7-stiffener, 8-longitudinal steel bar, 9-supporting upright rod, 10-top plate and 13-panel.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, an overall structure schematic diagram of a two-way multi-ribbed cavity floor module for a steel structure in an embodiment of the invention is shown, the two-way multi-ribbed cavity floor module for the steel structure is formed by prefabricating at least 2 parallel longitudinal section steel multi-ribbed beams 1-1, at least 2 parallel transverse section steel multi-ribbed beams 1-2, at least 1 bottom plate 2, at least 1 cavity component 3 and at least 1 integrated pipeline component 4, the longitudinal section steel multi-ribbed beams 1-1 and the transverse section steel multi-ribbed beams 1-2 are arranged in a crossed manner, the bottom plate 2 is positioned at the bottom of a space enclosed by the longitudinal section steel multi-ribbed beams 1-1 and the transverse section steel multi-ribbed beams 1-2, section steel in the longitudinal section steel multi-ribbed beams 1-1 and section steel in the transverse section steel multi-ribbed beams 1-2 are respectively connected with reinforcing steel bars of the bottom plate 2 and are tamped into a whole by concrete, the integrated piping element 4 is fixed on the base plate 2, and the cavity member 3 is fixed on the base plate 2.
The center distance between the longitudinal section steel multi-ribbed beams 1-1 and/or between the transverse section steel multi-ribbed beams 1-2 is 600-1200 mm; or the height of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 is 200-1500 mm; or the width of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 is 100-400 mm; or the number of the section steel multi-ribbed beams 1 is 2, 3 or 4. A common span of such modules is given.
The side edges of the upper and lower flange plates of the section steel in the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 are welded with stiffeners 7, and the stiffeners 7 are one or a combination of steel bars, steel plate strips and steel mesh. The connecting performance of prefabricated or post-cast concrete in the longitudinal section steel multi-ribbed beam 1-1 and the transverse section steel multi-ribbed beam 1-2 and section steel beams and concrete is enhanced, and the shear strength of the multi-ribbed beam can be effectively improved, so that the self height of the section steel beams is reduced, the using function of a house is improved, and the construction cost is saved.
The section steel section in the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 is in one of I shape, T shape and L shape or a combination of a plurality of shapes; or the section steel in the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 is a light steel composite structure.
The bottom plate 2 is provided with reinforcing steel bars, reinforcing steel bar meshes or prestressed tendons; or when the bottom plate 2 is provided with the steel bars and is vertically connected with the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2, the tail end of each vertical steel bar is provided with a longitudinal steel bar 8 along the direction of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2, and the longitudinal steel bar 8 is welded with a web plate or a lower flange plate of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2; this is to reduce the welding point quantity of reinforcing bar and multi-ribbed beam, increases the reliability that bottom plate and multi-ribbed beam are connected. Or the steel bars in the bottom plate 2, which are perpendicular to the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2, penetrate through the web plate or the side plate of the section steel multi-ribbed beam 1 to extend outwards in one direction or two directions, so that the prefabricated bottom plate 2 is selected out from the outer side of the section steel multi-ribbed beam 1 in a single-sided or double-sided mode, and bottom ribs in the selected bottom plate 2 extend out of the plate edge.
The integrated pipeline piece 4 is provided with 1 or more pipeline inlets and outlets; or the integrated pipeline piece 4 is communicated with the hole 5 or the conduit; or one or a plurality of combinations of a reserved junction box, an electric appliance fixing base, a power socket and a temperature-sensing fire alarm monitoring device are arranged on the upper surface, close to the bottom plate 2, in the integrated pipeline piece 4; or the integrated piping element 4 is located on the floor plate 2 inside the cavity member 3; or the integrated pipeline part 4 is positioned at the bottom of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2.
The cavity component 3 is a pentahedral structure enclosed by hard materials, the opening of the cavity component faces the bottom plate 2, and the cavity component is firmly connected with the bottom plate 2; or the cavity component 3 is a hexahedral structure enclosed by hard materials and is firmly connected with the bottom plate 2; or the cavity member 3 is a lightweight six-sided solid.
The width of the cavity member 3 is less than or equal to the net distance between the medium steel upper flange plates of two adjacent longitudinal section steel multi-ribbed beams 1-1 and/or two adjacent transverse section steel multi-ribbed beams 1-2; the height of the sum of the thicknesses of the cavity member 3 and the bottom plate 2 is less than or equal to the total height of the section steel in the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2.
Referring to fig. 2, a schematic view of a construction and assembly structure of a two-way ribbed cavity floor module for a steel structure in the embodiment of the invention is shown, two ribbed cavity floor modules for a steel structure are assembled by overlapping through external steel bars of a bottom plate 2 and curing and forming through post-cast concrete;
referring to fig. 3, a schematic diagram of a construction assembly structure of a two-way ribbed cavity floor module for a steel structure in the embodiment of the invention, or two ribbed cavity floor modules for a steel structure are assembled by inserting a common longitudinal steel ribbed beam 1-1 and/or a common transverse steel ribbed beam 1-2 through corresponding two base plate 2 overhanging steel bars, and casting and tamping concrete together with the concrete of the longitudinal steel ribbed beam 1-1 and/or the transverse steel ribbed beam 1-2 in situ to form the concrete;
referring to fig. 4, a schematic diagram of a construction assembly structure of a two-way multi-ribbed cavity floor module for a steel structure in the embodiment of the invention, or the assembly of two multi-ribbed cavity floor modules for a steel structure, is formed by casting concrete on site together with concrete of a longitudinal steel multi-ribbed beam 1-1 and/or a transverse steel multi-ribbed beam 1-2 of another module through an overhanging steel bar of a bottom plate 2 of one module and the concrete of the longitudinal steel multi-ribbed beam 1-1 and/or the transverse steel multi-ribbed beam 1-2.
A construction method of a two-way ribbed cavity floor module for a steel structure comprises six steps of formwork erecting, hoisting, module connecting, pipeline laying, plate closing and maintenance and form removal:
the step of formwork erection is that supporting upright rods 9 are arranged at the splicing positions of every two of the two-way ribbed cavity floor modules for the steel structure; or the top end of the supporting upright rod 9 is provided with a top plate 10, and the top plate 10 is firmly fixed with the section steel in the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 by adopting a notch, a tongue-and-groove, a stud, a screw or a bolt;
the module connecting step is that after two-dimensional multi-ribbed cavity floor modules for a steel structure are spliced in position, reinforcing steel bars in one module base plate 2 are connected with reinforcing steel bars in the other module base plate 2, a section steel beam is transversely placed and is respectively and rigidly connected with two adjacent transverse section steel multi-ribbed beams 1-2 into a whole, cavity members are arranged in the front and the rear of the section steel beam, and post-cast concrete is maintained and formed; or a public longitudinal section steel multi-ribbed beam 1-1 and/or a public transverse section steel multi-ribbed beam 1-2 are inserted through the overhanging reinforcing steel bars of the two corresponding bottom plates 2, and are rigidly connected with the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 at the joint into a whole, and are cast and tamped with concrete of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 on site to form the concrete; or after the two-way multi-ribbed cavity floor system modules for the steel structure are spliced in pairs in place, the steel bars in the bottom plate 2 of one module are welded with the web plate or the lower flange plate of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 of the other module;
the pipeline laying step is that a horizontal pipeline is laid on the bottom plate 2 and reaches a use end interface through the integrated pipeline piece 4;
the plate closing step is that after the connecting step and the pipeline laying are finished, reinforcing steel bars of the prefabricated panel 13 are laid on the upper portions of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 and the cavity component 3, and concrete of the overlapped portion of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 and the prefabricated panel 13 is poured and tamped;
or the plate closing step is that after the connecting step and the pipeline laying are finished, the upper parts of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 and the cavity component 3 are respectively laid with a panel 13, and concrete between the overlapping part of the longitudinal section steel multi-ribbed beam 1-1 and/or the transverse section steel multi-ribbed beam 1-2 and the panel 13 is poured and tamped.
The bidirectional ribbed cavity floor module for the steel structure has the advantages of high rigidity, strong bearing capacity, complete mold support free, high prefabrication rate and high industrialization degree. The prefabricated floor slab is suitable for solving the problem of the prefabricated floor slab of a building type with large quantity and small span like a house, and is also suitable for solving the problem of the prefabricated floor slab of a public building with large span. On the other hand, the self weight of the floor is reduced, the construction period is shortened, the indoor clear height is increased, and the construction cost can be reduced. In addition, the prefabricated bidirectional multi-ribbed cavity floor module for the steel structure has good bidirectional stress performance and strong integrity, and can be more suitable for larger structural span than a unidirectional prefabricated multi-ribbed cavity floor module.
Compared with the prior art, the bidirectional ribbed cavity floor module for the steel structure has the advantages of high rigidity, high bearing capacity, good bidirectional stress performance and high integrity, can be more suitable for larger structural span, and is suitable for solving the problem of assembled floor of public buildings with larger span.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (11)
1. The utility model provides a two-way close rib cavity superstructure module for steel construction, by 2 parallel vertical shaped steel close rib roof beams (1-1), 2 parallel horizontal shaped steel close rib roof beams (1-2) at least, 1 piece at least bottom plate (2), 1 at least cavity component (3) and 1 at least integrated pipe spare (4) prefabrication integrative one-piece, its characterized in that: the longitudinal section steel multi-ribbed beam (1-1) and the transverse section steel multi-ribbed beam (1-2) are arranged in a crossed mode, the bottom plate (2) is located at the bottom of a space enclosed by the longitudinal section steel multi-ribbed beam (1-1) and the transverse section steel multi-ribbed beam (1-2), section steel in the longitudinal section steel multi-ribbed beam (1-1) and section steel in the transverse section steel multi-ribbed beam (1-2) are respectively connected with reinforcing steel bars of the bottom plate (2) and are integrally smashed through concrete, and the cavity member (3) and the integrated pipeline member (4) are fixed on the bottom plate (2).
2. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: holes (5) are reserved on the web plate or the side plate of the section steel in the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2); or a guide pipe is reserved in the hole (5); or the concrete within the range of the internal height h of the longitudinal section steel multi-ribbed beam (1-1) and the transverse section steel multi-ribbed beam (1-2) is prefabricated and molded together with the concrete of the bottom plate (2), and the height h of the prefabricated concrete inside the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is less than or equal to the sum of the thickness of the cavity member (3) and the thickness of the bottom plate (2); or the width b of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is the clear distance between two adjacent cavity components (3); or the width b of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is more than or equal to the width of the section steel upper flange or the section steel of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2).
3. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the center distance between the longitudinal section steel multi-ribbed beams (1-1) and/or between the transverse section steel multi-ribbed beams (1-2) is 600-1200 mm; or the height of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is 200-1500 mm; or the width of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is 100-400 mm; or the number of the section steel multi-ribbed beams (1) is 2, 3 or 4.
4. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the side edges of the upper and lower flange plates of the section steel in the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) are welded with stiffeners (7), and the stiffeners (7) are one or a combination of steel bars, steel plate strips and steel mesh.
5. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the section steel section in the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is in one of I shape, T shape and L shape or a combination of a plurality of I shapes, T shapes and L shapes; or the section steel in the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) is a light steel composite structure.
6. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the bottom plate (2) is provided with reinforcing steel bars, reinforcing steel bar meshes or prestressed tendons; or when the bottom plate (2) is provided with the steel bars and the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) to be vertically connected, the tail end of each vertical steel bar is provided with the longitudinal steel bar (8) along the direction of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2), and the longitudinal steel bar (8) is welded with the web plate or the lower flange plate of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2); or the steel bars in the bottom plate (2) perpendicular to the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) extend outwards in one direction or two directions through the web plate or the side plate of the section steel multi-ribbed beam (1), so that the prefabricated bottom plate (2) is/are projected out from the outer side of the section steel multi-ribbed beam (1) in one side or two sides, and the bottom ribs in the projected bottom plate (2) extend out of the plate edge.
7. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the integrated pipeline piece (4) is provided with 1 or more pipeline ports; or one or a plurality of combinations of a reserved junction box, an electric appliance fixing base, a power socket and a temperature-sensing fire alarm monitoring device are arranged on the upper surface, close to the bottom plate (2), in the integrated pipeline piece (4); or the integrated pipeline piece (4) is positioned on the bottom plate (2) in the cavity component (3); or the integrated pipeline piece (4) is positioned at the bottom of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2).
8. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the cavity component (3) is a pentahedral structure enclosed by hard materials, the opening of the cavity component faces the bottom plate (2) and is firmly connected with the bottom plate (2); or the cavity component (3) is a hexahedral structure enclosed by hard materials and is firmly connected with the bottom plate (2); or the cavity member (3) is a light six-sided solid.
9. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the width of the cavity member (3) is less than or equal to the net distance between the medium-sized steel upper flange plates of two adjacent longitudinal section steel multi-ribbed beams (1-1) and/or two adjacent transverse section steel multi-ribbed beams (1-2); the height of the sum of the thicknesses of the cavity member (3) and the bottom plate (2) is less than or equal to the total height of the section steel in the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2).
10. The module of bi-directional multi-ribbed cavity floor system of claim 1, wherein: the splicing of the ribbed cavity floor system modules for the two steel structures is realized by lapping through the overhanging steel bars of the bottom plate (2), transversely placing a section steel beam, respectively and rigidly connecting the two transverse section steel ribbed beams (1-2), installing cavity members at the front and the rear of the section steel beam, and pouring concrete for curing and forming;
or the splicing of the multi-ribbed cavity floor system modules for two steel structures is realized by inserting a public longitudinal section steel multi-ribbed beam (1-1) and/or a transverse section steel multi-ribbed beam (1-2) through the overhanging steel bars of two corresponding bottom plates (2), rigidly integrating the public longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) at the joint, and pouring and tamping concrete together with the concrete of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) to form the multi-ribbed cavity floor system modules on site;
or the splicing of the multi-ribbed cavity floor system modules for two steel structures is realized by rigidly integrating the longitudinal section steel multi-ribbed beams (1-1) and/or the transverse section steel multi-ribbed beams (1-2) of one module with the overhanging steel bars of the bottom plate (2) of one module and the longitudinal section steel multi-ribbed beams (1-1) and/or the transverse section steel multi-ribbed beams (1-2) at the joint and pouring and tamping concrete together with the concrete of the longitudinal section steel multi-ribbed beams (1-1) and/or the transverse section steel multi-ribbed beams (1-2) to form the multi-ribbed cavity floor system modules for the steel structures on site.
11. A construction method of a two-way ribbed cavity floor module for a steel structure comprises six steps of formwork erecting, hoisting, module connecting, pipeline laying, plate closing and maintenance and form removal, and is characterized in that:
the step of formwork support is that supporting upright rods (9) are arranged at the splicing positions of every two of the two-way ribbed cavity floor modules for the steel structure; or the top end of the supporting upright rod (9) is provided with a top plate (10), and the top plate (10) is firmly fixed with the section steel in the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) by adopting a notch, a tongue-and-groove, a stud, a screw or a bolt;
the module connecting step is that after two-two splicing in place of the two-way multi-ribbed cavity floor system modules for the steel structure, the steel bars in one module bottom plate (2) are connected with the steel bars in the other module bottom plate (2), a section steel beam is transversely placed, the section steel beam is respectively and rigidly connected with two adjacent transverse section steel multi-ribbed beams (1-2) into a whole, cavity components are arranged in the front and at the back of the section steel beam, and post-cast concrete is maintained and formed; or the external extending reinforcing steel bars of the two corresponding bottom plates (2) are inserted into a common longitudinal section steel multi-ribbed beam (1-1) and/or a transverse section steel multi-ribbed beam (1-2), and are rigidly connected with the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) at the joint into a whole, and then are cast and tamped with the concrete of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) to form the concrete on site; or after the two-way multi-ribbed cavity floor system modules for the steel structure are spliced in pairs in place, the steel bars in the bottom plate (2) of one module are welded with the web plate or the lower flange plate of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) of the other module;
the pipeline laying step is that a horizontal pipeline is laid on the bottom plate (2) and reaches a use end interface through the integrated pipeline piece (4);
the plate closing step is that after the connecting step and the pipeline laying step are completed, reinforcing steel bars of a panel (13) are laid on the upper parts of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) and the cavity member (3), and concrete of the overlapping part of the longitudinal section steel multi-ribbed beam (1-1) and/or the transverse section steel multi-ribbed beam (1-2) and the panel (13) is poured and tamped;
or the plate closing step is that after the module connecting step and the pipeline laying step are completed, prefabricated panels (13) are respectively laid on the upper portions of the longitudinal section steel multi-ribbed beams (1-1) and/or the transverse section steel multi-ribbed beams (1-2) and the cavity members (3), and concrete between the overlapping portions of the longitudinal section steel multi-ribbed beams (1-1) and/or the transverse section steel multi-ribbed beams (1-2) and the prefabricated panels (13) is poured and tamped.
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